Power and Industrial Plant Engineering
1. Find the work possess for a Helium gas at 20 0 C *A. 609 KJ/kg B. 168 KJ/kg C. 229 KJ/kg D. 339 KJ/kg Solution: W = m R T = m (8.314 / M) T For helium, M = 4 W/m = (8.314/4)(20 + 273) = 609 KJ/kg 2. Two kilogram of gas is confined in a 1 m 3 tank at 200 kpa and 88 0 C. What type of gas is in the tank? A. Helium *B. Ethane C. Methane D. Ethene Solution: Therefore: the gas is Ethane (C 2 H 8 ) 3. Find the enthalpy of Helium if its internal energy is 200 KJ/kg 144 KJ/kg B. 223.42 KJ/kg *C. 333.42 KJ/kg D. 168 KJ/kg...